Improved machine for disintegrating wood for paper-stock



UNITED STATES PATENT OEEIoE.

JAMES STUTT, OF FERMANAGH COUNTY, IRELAND.

lMPROVED MACHINE FOR DISINTEGRATING WOOD FOR PAPER-STOCK.

Specification forming part of Letters Patent No. 89.255, dated April 20, 1869.

To all whom 'it may concern.'

Be it known that I, J AMES STUTT, of Fermanagh county, Ireland, have invented a new and Improved Wood-Disintegrating Machine g and I do herebydeclare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specification.

The nature and object of. my invention consist in so constructing a machine that paperpulp may be made from wood, but more particularly consists in placing a gang of saws obliquely upon a horizontal shaft 5 also, the

combination of the frame and feed works with the gang of saws. p

Various machines and methods have been devised and employed for disintegrating wood for the purpose of making paper-pulp, but in most cases have proved to be of but little utility, and the results of their operations unsatisfactory; but my invention removes all objections t0 machinery being used or employed for disintegrating wood by means of circular saws being placed obliquely upon a shaft and made to revolve rapidly, while the log is fed over them in such a manner that the teeth j ust come in contact with the log or wood that is placed on the carriage and fed over the saws, thus making it one of the best modes for disintegrating wood for paper-pulp ever devised.

To enable others skilled in the art to make.

and use my invention, I will proceed to describe its construction and operation.

The figure is a geometrical perspectiveview of lmy improved machine for making paperpu p.

Letters of like name and kind refer to like parts in the figure.

A represents a rectangular frame, made of wood, and mounted upon and supported by any number of suitable posts. B B are the ways or timbers running from end to end of the main frame A, and secured thereto by any proper means. In these ways or timbers are placed, at convenient distances apart, suitable rollers G or friction-wheels, for the purpose of running the carriage thereon, so that it may run easy and with but little friction while in operation.

C represents any number of rollers running transversely across the frame, provided with journals that Arun in suitable bearings therein,

which are also for the purposeof lessening` side underneath the two longitudinal timbers.' The said rack-teeth mesh into correspondingk teeth in the pinion-wheels I I, which are located and secured upon the shaft of the gearwheel J, the said shaft running in suitable bearings secured to the frame A.

E E are the head and tail blocks, in and upon which are placed and secured the logs. The tail-block E is made fast in the carriage D, while the head-block E may be made to accommodate it to the length of log that is to be worked up. F F are the dogs, which are secured to the -he-ad and tail blocks, which are made of iron, wood, or other proper material.

O is a gang of circular saws, made to a suitable diameter, rigidly secured obliquely upon a shaft, P, which is provided with journals that run in proper bearings, which are firmly secured to the timbers of the frame A, the said shaft running transversely with the said frame A, which brings the saws in a longitudinal direction with the frame.

Q is a metal plate, located immediately in front of the saws, for the purpose of directing the fibers of wood after having been disintegrated by the saws from the log down into a proper receptacle underneath the saws.

R R are two iron rollers running in bearings transversely with the frame, and provided with iianges for the purpose of preventing the log from having any lateral motion while being sawed up. S is the driving-pulley, rigidly secured to the shaft P, upon which are the saws O. T is a loose pulley, also upon the shaft P.

U represents four screw-bolts, passing down through the main frame A and through the cross-pieces V, for vthe purpose of elevating and lowering the saws so as to adjust them with proper accuracy to work.

W W are two hand-screws, for the purpose of securing the head-block in any desired position to accommodate the length of log to be cut or colnbed up. X X are handles on the lower part of the dogs, for the convenience of raising them up and down. Y are holes made through the dogs F for the purpose of receiving a pin, which holds up the dog while a log is being put on the carriage. N are bandwheels, which are secured upon a suitable shaft, which runs in the frame A, and to which is secured the bevel-wheel M, which meshes into a corresponding bevel-wheel, L, which is fast upon the endless screw-shaft K, which earries the gear-wheel J, upon the shaft of which are corresponding pinions L L, which mesh into the rack H and carry the carriage D.

The operation will be readily seen. By placin ga log between the head and tail blocks, then by driving the spurs of the dogs into each end of the log, it is made fast to the carriage. The saws are then adjusted in a suitable position by means of the screws U, and any of the motive powers applied to the band-wheels S. The saws are putin rapid mo* tion, and, by reason of their being placed obliquely upon the shaft, the sinuosities of their tracks out or comb the wood laterally and longitudinally, thus making a perfect pulp in the cheapest and most rapid manner.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States,is-

l. The dogs F F, in combination with the head-blocks E E and carrriage D, for the purposes and substantially as described.

2. In combination with the dogs F F and head-blocks E E, the saws O, hung obliquely upon the shaft P, so that the sinuosities of the track of the saws will cut laterally as well as longitudinally, for the purpose of making paper-pulp, and for the purposes described.

3. The rollers R R, in combination with the carriage D and saws O, substantially as herein set forth.

4. The bevel-gears M and endless screw K, gear-wheel J, and'pinions l I, in combination with the rack H, carriage" D, and the gang of saws 0, when constructed and operated for the purposes and substantially as herein setforth.

The above specication of my invention signed by me this 8th day of June, 1866.

JAMES STUTT.

Witnesses:

GEORGE TAYLon., J oHN LEYs. 

